Table 4.
Sensitivity analysis for the association of individual cognitive biases with vaccine confidence scale score.
| Variable | VCS Score Category | OR | 95% CI | |
|---|---|---|---|---|
| Base Rate Neglect | Low | 1.12 | 0.84 | 1.48 |
| Medium | 1.07 | 0.82 | 1.39 | |
| High | 1.00 | - | - | |
| Conjunction Fallacy | Low | 0.59 | 0.43 | 0.80 |
| Medium | 0.77 | 0.57 | 1.04 | |
| High | 1.00 | - | - | |
| Sunk Cost Bias | Low | 0.72 | 0.54 | 0.96 |
| Medium | 0.87 | 0.67 | 1.13 | |
| High | 1.00 | - | - | |
| Information Avoidance | Low | 2.92 | 2.22 | 3.84 |
| Medium | 1.79 | 1.38 | 2.32 | |
| High | 1.00 | - | - | |
| Present Bias | Low | 3.74 | 2.21 | 6.33 |
| Medium | 2.14 | 1.24 | 3.71 | |
| High | 1.00 | - | - | |
| Risk Aversion | Low | 1.01 | 0.75 | 1.35 |
| Medium | 0.92 | 0.70 | 1.21 | |
| High | 1.00 | - | - | |
Note: VCS Scores were divided between Low (VCS ≤ 6), Medium (6 < VCS ≤ 8), and High (VCS > 8). Lower scores indicate greater hesitancy. Odds ratios indicate the odds of susceptibility to each cognitive bias between levels of vaccine hesitancy, modeled using multinomial logistic regression with “High” vaccine confidence scores as the reference group.